import mapper.UserMapper;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import pojo.User;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * 主类
 */
public class MybatisDemo02 {
    public static void main(String[] args) throws IOException {
        //操作Mybatis的4个步骤：
        //1、加载mybatis-config.xml 配置文件，创建工厂类
        InputStream is = Resources.getResourceAsStream("mybatis-config.xml");
        SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(is);

        //2、创建SqlSession
        SqlSession sqlSession = factory.openSession();

        //3、执行SQL语句
        //List<User> userList = sqlSession.selectList("test.selectAll");
        UserMapper userMapper = sqlSession.getMapper(UserMapper.class);
        List<User> userList = userMapper.selectAll();

        //4、关闭SqlSession
        sqlSession.close();

        for (User user : userList){
            System.out.println(user);
        }

    }
}
